Updated MMU settings for Nokia 400g and 100g HWSKUs

[vmittal-msft]

Why I did it

Updated MMU settings to enhance performance for RDMA traffic in production.

Work item tracking

• Microsoft ADO (28551006):

How I did it

Updated device files for buffer pool/profile settings.

How to verify it

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205
• 202211
• 202305

Tested branch (Please provide the tested image version)

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[judyjoseph]

@saksarav-nokia please review

[vmittal-msft]

for arista hwsku - #18500
for qos tests - sonic-net/sonic-mgmt#11907

[gechiang]

@vmittal-msft , wondering how these numbers were chosen? Were there any performance tests done? Or these were recommended by Nokia team which did run rigorous performance testing and resulted to this numbers for the community to consume? If you can add some support info in the description that would be helpful.

[vmittal-msft]

@vmittal-msft , wondering how these numbers were chosen? Were there any performance tests done? Or these were recommended by Nokia team which did run rigorous performance testing and resulted to this numbers for the community to consume? If you can add some support info in the description that would be helpful.

@gechiang These numbers are chosen based on internal discussion with RDMA team and field experience. We will have sai release matching with these changes as well (It helps with expanded buffers for PG).

[vmittal-msft]

Adding dump from HW tables to facilitate code review -
MMU settings.txt

[vmittal-msft]

@saksarav-nokia please review.

[vmittal-msft]

'/azpw ms_conflict

[mlok-nokia]

Checked it with Sakthi . It looks good.

[saksarav-nokia]

Anshu already ran the sonic-mgmt Qos and verified this PR and adjusted the Qos.yml.. Looks good.

[mlok-nokia]

@vmittal-msft This change requires to modify the expected result to pass the UT in image build.

[gechiang]

/azpw run

[gechiang]

/azp run

[azure-pipelines]

Commenter does not have sufficient privileges for PR 18239 in repo sonic-net/sonic-buildimage

[gechiang]

/azpw ms_conflict

[judyjoseph]

/AzurePipelines run Azure.sonic-buildimage

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[gechiang]

@vmittal-msft build is failing due to the following testcase failure:

======================================================================
FAIL: test_qos_and_buffer_nokia_ixr7250e_36x100g_render_template (tests.test_j2files.TestJ2Files)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/sonic/src/sonic-config-engine/tests/test_j2files.py", line 379, in test_qos_and_buffer_nokia_ixr7250e_36x100g_render_template
    self.do_test_qos_and_buffer_lc_render_template('x86_64-nokia_ixr7250e_36x400g-r0', 'nokia', 'Nokia-IXR7250E-36x100G',\
  File "/sonic/src/sonic-config-engine/tests/test_j2files.py", line 356, in do_test_qos_and_buffer_lc_render_template
    assert utils.cmp(sample_output_file, self.output_file), self.run_diff(sample_output_file, self.output_file)
AssertionError: --- /sonic/src/sonic-config-engine/tests/sample_output/py3/buffer-nokia-ixr7250e-36x100g.json	2024-06-06 16:58:53.467306669 +0000
+++ /sonic/src/sonic-config-engine/tests/output	2024-06-06 18:01:47.452678227 +0000
@@ -33,14 +33,14 @@
     "BUFFER_PROFILE": {
         "ingress_lossy_profile": {
             "pool":"ingress_lossless_pool",
-            "size":"1280",
-	    "xon_offset": "2560",
-            "dynamic_th":"0"
+            "size":"0",
+	    "xon_offset": "0",
+            "dynamic_th":"-8"
         },
         "egress_lossless_profile": {
             "pool":"ingress_lossless_pool",
             "size":"0",
-            "static_th":"33030144"
+            "dynamic_th":"-1"
         },
         "egress_lossy_profile": {
             "pool":"ingress_lossless_pool",

======================================================================
FAIL: test_qos_and_buffer_nokia_ixr7250e_36x400g_render_template (tests.test_j2files.TestJ2Files)
----------------------------------------------------------------------

[vmittal-msft]

nokia_logs.txt

[vmittal-msft]

@saksarav-nokia please review latest settings.

[gechiang]

@vmittal-msft please share MSFT ADO number for this PR

[vmittal-msft]

@vmittal-msft please share MSFT ADO number for this PR

@vmittal-msft please share MSFT ADO number for this PR

Done

[vmittal-msft]

@yxieca @lguohan @rlhui Can you please help merge this ?

[mssonicbld]

Cherry-pick PR to 202405: #19799